Dhoh! I'll post up a revised version with the OUT label corrected. Thanks for letting me know. It's good to know that it works.
- Sean > On Jan 29, 2014, at 1:21 PM, Kevin Crossett <kcross...@gmail.com> wrote: > > I have been messing about with this board for a while, but have not had > success hooking it up the rig yet. I downloaded the schematic that Sean > produced ... nice job ... and made up a board using the laser toner method > described by K7QO. I did see one small issue with the board. The OUT label is > actually labeled GND ... a minor oversight. Otherwise the board looks FB. > > Two questions about using pin 5 from the microphone header ... > > Is the ground from the audio out board still used? If so, where does it > connect? > > Also, while I don't use a mic (CW only at this point), if I attach the audio > out to pin 5, can I still plug in an Elecraft-wired mic without unplugging > the audio out connector from the header? > > Thanks for any insight... > > Kevin > KK4LSG > > >> On Mon, Jan 27, 2014 at 6:51 PM, Don Wilhelm <w3...@embarqmail.com> wrote: >> Sean, >> >> The circuit is simple enough to build on perfboard if you don't want to go >> to the trouble of making a board. If you do make boards, you might want to >> consider making additional board and offering them for sale. There are >> occasional requests for those boards. >> >> Build the version which lays the components flat on the board and attach it >> to the back of the Control Board. That way everything except the audio >> output is on the Control Board making the Control Board easy to remove for >> servicing - plus it fits easily when the KPA100 is installed. For the >> output connection, yes an unused microphone pin is an ideal place (for the >> Elecraft microphones, use pin 5). Use a wire that is an adequate length to >> allow the Control Board to be removed sufficiently that you can reach the >> microphone configuration header on the back of the Front Panel. You can >> solder the audio output wire to one of the 'computer' type jumpers that will >> plug right into the microphone configuration header - make certain the >> 'jumper' is plugged only into the side that is closest to the microphone >> jack. >> >> The only difference between Pauli's (SK) AF take off point and the one I >> used is that Pauli's is prior to the muting transistors in the K2 and my >> points are after the muting transistors. >> If you prefer that the AF not be muted during TX, then you can still attach >> to the back of the Control Board at the rear of CB J2 pins 1 and 2 - and is >> quite independent of the KDSP2 (or KAF2) option. >> >> I might add that Pauli did buy one of my boards - I asked him "Why since he >> had a wonderful interface already", and he replied that my Fixed Audio >> Output board was an easy and simple solution. >> >> Good luck on getting that license. >> >> 73, >> Don W3FPR >> >> >>> On 1/27/2014 6:08 PM, Sean Michael Johnston wrote: >>> Hello All. >>> >>> I’m a newbie here and about to embark on building a K2. One of the many >>> uses I have planned for the radio is to send emails over Winlink 2000 while >>> at sea on a sailboat. >>> I'd like to communicate with the SignaLink USB sound card through Winmor >>> first and then eventually with a PACTOR 3 or 4 modem. >>> >>> I was thinking of building the fixed audio out designed by W3FPR & NØSS. My >>> plan is to fabricate a pcb using the laser printer transfer method. I have >>> recreated NØSS’s layout as a printable pdf >>> (https://drive.google.com/file/d/0B_D41ceK5uSqM3VGa05BWXBhYkE/edit?usp=sharing), >>> and am thinking I’ll run the line out to pin 5 of the 8-pin mic >>> connection so I can have a single cable between the K2 and the SignaLink. >>> >>> My question is where is the best point in the K2 to source the AF inputs >>> from? Is it cleaner to tap into the control board as is illustrated by >>> W3FPR’s great instructions >>> (http://www2.opparc.org/mirrors/n0ss/www.n0ss.net/w3fpr_fixed_af_output_for_the_k2_v2r1.pdf), >>> or would it be a better signal if I tap into the KDSP2 board as >>> recommended by EA3BLQ >>> (http://www.qsl.net/ea3blq/downloads/k2di-pci_const_manual.pdf) for his >>> Sound Card Interface? And is this the best way to get a line out from the >>> K2, or has there been any newer advancements along those lines? >>> >>> I realize that I’m building a legacy product here, but from the activity >>> I’ve seen on this mailing list, it’s definitely not dead yet. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html